From 59a89fd650f4c419c5b2a6ea50ad6b1610fa8a10 Mon Sep 17 00:00:00 2001
From: Christopher Lenz <cmlenz@apache.org>
Date: Fri, 23 May 2008 19:27:52 +0000
Subject: Patch MochiWeb for compatibility with R11B. This patch has been
 rejected upstream, but it's simple enough to just apply here.

git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@659636 13f79535-47bb-0310-9956-ffa450edef68
---
 src/mochiweb/mochifmt.erl           |  2 +-
 src/mochiweb/mochiweb_headers.erl   |  2 +-
 src/mochiweb/mochiweb_html.erl      |  4 ++--
 src/mochiweb/mochiweb_multipart.erl |  2 +-
 src/mochiweb/mochiweb_util.erl      | 21 ++++++++++++++++++---
 5 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/src/mochiweb/mochifmt.erl b/src/mochiweb/mochifmt.erl
index da0a133a..696559d2 100644
--- a/src/mochiweb/mochifmt.erl
+++ b/src/mochiweb/mochifmt.erl
@@ -297,7 +297,7 @@ convert2(Arg, #conversion{ctype=oct}) ->
 convert2(Arg, #conversion{ctype=upper_hex}) ->
     erlang:integer_to_list(Arg, 16);
 convert2(Arg, #conversion{ctype=hex}) ->
-    string:to_lower(erlang:integer_to_list(Arg, 16));
+    mochiweb_util:to_lower(erlang:integer_to_list(Arg, 16));
 convert2(Arg, #conversion{ctype=char}) when Arg < 16#80 ->
     [Arg];
 convert2(Arg, #conversion{ctype=char}) ->
diff --git a/src/mochiweb/mochiweb_headers.erl b/src/mochiweb/mochiweb_headers.erl
index df67c7d0..371df9f5 100644
--- a/src/mochiweb/mochiweb_headers.erl
+++ b/src/mochiweb/mochiweb_headers.erl
@@ -160,7 +160,7 @@ merge(_, V1, V0) ->
     V0 ++ ", " ++ V1.
 
 normalize(K) when is_list(K) ->
-    string:to_lower(K);
+    mochiweb_util:to_lower(K);
 normalize(K) when is_atom(K) ->
     normalize(atom_to_list(K));
 normalize(K) when is_binary(K) ->
diff --git a/src/mochiweb/mochiweb_html.erl b/src/mochiweb/mochiweb_html.erl
index 0ac4826e..39ce51e6 100644
--- a/src/mochiweb/mochiweb_html.erl
+++ b/src/mochiweb/mochiweb_html.erl
@@ -328,7 +328,7 @@ tokens(B, S=#decoder{offset=O}, Acc) ->
     end.
 
 parse_flag({start_tag, B, _, false}) ->
-    case string:to_lower(binary_to_list(B)) of
+    case mochiweb_util:to_lower(binary_to_list(B)) of
         "script" ->
             script;
         "textarea" ->
@@ -521,7 +521,7 @@ norm({Tag, Attrs}) ->
 norm(Tag) when is_binary(Tag) ->
     Tag;
 norm(Tag) ->
-    list_to_binary(string:to_lower(Tag)).
+    list_to_binary(mochiweb_util:to_lower(Tag)).
 
 test_destack() ->
     {<<"a">>, [], []} =
diff --git a/src/mochiweb/mochiweb_multipart.erl b/src/mochiweb/mochiweb_multipart.erl
index 9eb4badd..7d42be52 100644
--- a/src/mochiweb/mochiweb_multipart.erl
+++ b/src/mochiweb/mochiweb_multipart.erl
@@ -103,7 +103,7 @@ parse_headers(Binary, Acc) ->
 split_header(Line) ->
     {Name, [$: | Value]} = lists:splitwith(fun (C) -> C =/= $: end,
                                            binary_to_list(Line)),
-    {string:to_lower(string:strip(Name)),
+    {mochiweb_util:to_lower(string:strip(Name)),
      mochiweb_util:parse_header(Value)}.
 
 read_chunk(Req, Length) when Length > 0 ->
diff --git a/src/mochiweb/mochiweb_util.erl b/src/mochiweb/mochiweb_util.erl
index 7b66877d..e7026194 100644
--- a/src/mochiweb/mochiweb_util.erl
+++ b/src/mochiweb/mochiweb_util.erl
@@ -11,6 +11,7 @@
 -export([guess_mime/1, parse_header/1]).
 -export([shell_quote/1, cmd/1, cmd_string/1, cmd_port/2]).
 -export([record_to_proplist/2, record_to_proplist/3]).
+-export([to_lower/1]).
 -export([test/0]).
 
 -define(PERCENT, 37).  % $\%
@@ -170,7 +171,7 @@ urlsplit_scheme(Url) ->
 urlsplit_scheme([], Acc) ->
     {"", lists:reverse(Acc)};
 urlsplit_scheme(":" ++ Rest, Acc) ->
-    {string:to_lower(lists:reverse(Acc)), Rest};
+    {to_lower(lists:reverse(Acc)), Rest};
 urlsplit_scheme([C | Rest], Acc) ->
     urlsplit_scheme(Rest, [C | Acc]).
 
@@ -322,11 +323,11 @@ parse_header(String) ->
                         %% Skip anything with no value
                         Acc;
                     {Name, [$\= | Value]} ->
-                        [{string:to_lower(string:strip(Name)),
+                        [{to_lower(string:strip(Name)),
                           unquote_header(string:strip(Value))} | Acc]
                 end
         end,
-    {string:to_lower(Type),
+    {to_lower(Type),
      lists:foldr(F, [], Parts)}.
 
 unquote_header("\"" ++ Rest) ->
@@ -369,6 +370,20 @@ shell_quote([C | Rest], Acc) when C =:= $\" orelse C =:= $\` orelse
 shell_quote([C | Rest], Acc) ->
     shell_quote(Rest, [C | Acc]).
 
+to_lower_char(C) when is_integer(C),  C >= $A, C =< $Z ->
+    C + 32;
+to_lower_char(C) when is_integer(C),  C >= 16#C1, C =< 16#D6 ->
+    C + 32;
+to_lower_char(C) when is_integer(C),  C >= 16#D8, C =< 16#DE ->
+    C + 32;
+to_lower_char(C) ->
+    C.
+
+to_lower(S) when is_list(S) ->
+    [to_lower_char(C) || C <- S];
+to_lower(C) when is_integer(C) ->
+    to_lower_char(C).
+
 test() ->
     test_join(),
     test_quote_plus(),
-- 
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